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<div class="titlepage"><div><div><h2 class="title">
<a name="requirements"></a>Appendix A. Zend Framework Requirements</h2></div></div></div>
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<p><b>Table of Contents</b></p>
<dl>
<dt><span class="sect1"><a href="requirements.html#requirements.version">A.1. PHP Version</a></span></dt>
<dt><span class="sect1"><a href="requirements.extensions.html">A.2. PHP Extensions</a></span></dt>
<dt><span class="sect1"><a href="requirements.zendcomponents.html">A.3. Zend Framework Components</a></span></dt>
<dt><span class="sect1"><a href="requirements.dependencies.html">A.4. Zend Framework Dependencies</a></span></dt>
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<p>
        Zend Framework requires a PHP 5 interpreter with a web server configured
        to handle PHP scripts correctly. Some features require additional extensions or
        web server features; in most cases the framework can be used without them, although
        performance may suffer or ancillary features may not be fully functional. An example
        of such a dependency is mod_rewrite in an Apache environment, which can be used to
        implement "pretty URL's" like "http://www.example.com/user/edit". If mod_rewrite is
        not enabled, ZF can be configured to support URL's such as "http://www.example.com?controller=user&amp;action=edit".
        Pretty URL's may be used to shorten URL's for textual representation or search engine optimization (SEO),
        but they do not directly affect the functionality of the application.
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<div class="sect1" lang="en">
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<a name="requirements.version"></a>A.1. PHP Version</h2></div></div></div>
<p>
            Zend recommends PHP 5.2.3 or higher for critical security and performance enhancements, although
            Zend Framework requires only PHP 5.1.4 or later.
        </p>
<p>
            Zend Framework has an extensive collection of unit tests, which you can run using PHPUnit 3.0 or later.
        </p>
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